“…However, the surface finish is irregular and has a low print resolution [36] . The applications with great potential within medicine for this category are implants (PEEK [37] ; ATP powder [38] ), prosthesis (Lignin biofilament; PLA [39] ; PE-PP-ABS [40] ), orthesis (ABS, PET, PC, PLA [41] ), surgical instruments (ABS+ [42] ; ABS [43] ; TPU [44] ) and other new trends. This category's most critical manufacturing technique is Fused Deposition Modeling (FDM) [45] , [46] , [47] .…”